The actress, who plays Claire Fraser, revealed she began working with costume designer Terry Dresbach shortly after the first season.

Caitriona said: "Terry and I had our first temp fitting at the end of Season 1... So I was starting to see some of the shapes and at that point it was all in this plain fabric.

"So when I came back for Season 2 and I just saw these luscious fabrics and colours and the embroidery and the silks, she just outdone ourselves. It's really incredible what she did.

Outlander Season 2

She went on to discuss how the dresses were restrictive and different to the previous season's costumes.

"It was interesting because they are very restrictive in a totally different way to the 18th century stuff was.

"It’s two-fold. I think Claire was excited to finally explore her femininity, but also once you’ve enjoyed it in the beginning, then there’s that restriction. It puts her in a different place as a woman that she didn’t really expect.”